RBE971 V12.1.11.15: Intel AX211 client severe latency on main 5 GHz SSID, fine on IoT SSID

What Intel driver version are you using? I'm using current lastest version from them, v.70 something. 

Might try a external USB adapter and check 5Ghz to conpare. 

Has a full on factory reset and setup from scratch been performed? 

How many RBS are deployed? 

What is the size of your home? Sq Ft?

What is the distance between the router 📡 and satellite(s)🛰️? 30 feet or more is recommended in between RBR 📡 and RBS 🛰️ to begin with depending upon building materials when wired or wirelessly connected.

I don't have a AX211, however do have a AX210 and have been testing that adapter on a few different Orbi BE systems. Currently testing a 770v1 series. 

Last testing on the 970 series was fairly good. 

Manual channels 1 and 40 here. 

No IoT network enabled.

Saw some ms in teens area here and there however not frequeny and not high pings seen or timeouts. Timeouts are a big concern for wifi devices connected behind the RBS. 

Also testing while connected at the RBS to help check for latency stability with RBS wireless connected. 

However, I have only been testing 6Ghz as testing the top tier frequency support that someone else had posted and had asked about. 

Testing other adapters as well i.e. Intel BE200 and NG A9000. 

Between all adapters i've been testing, AX210 seems to be most problematic with Orbi systems that I've noticed. Intel BE200 in MLO and A9000 at 6Ghz only has been most stable. 

Keep in contact thru the case #